Propagate bailout and dont_optimize reasons to cpu-profiler

test/cctest/test-profile-generator.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 764 matching lines @@
 
   profiler->processor()->StopSynchronously();
 
   CHECK_EQ(1, GetFunctionLineNumber(&env, "foo_at_the_first_line"));
   CHECK_EQ(0, GetFunctionLineNumber(&env, "lazy_func_at_forth_line"));
   CHECK_EQ(2, GetFunctionLineNumber(&env, "bar_at_the_second_line"));
   CHECK_EQ(0, GetFunctionLineNumber(&env, "lazy_func_at_6th_line"));
 
   profiler->StopProfiling("LineNumber");
 }
+
+
+
+TEST(BailoutReason) {
+  const char* extensions[] = { "v8/profiler" };
+  v8::ExtensionConfiguration config(1, extensions);
+  LocalContext env(&config);
+  v8::HandleScope hs(env->GetIsolate());
+
+  v8::CpuProfiler* profiler = env->GetIsolate()->GetCpuProfiler();
+  CHECK_EQ(0, profiler->GetProfileCount());
+  v8::Handle<v8::Script> script = v8::Script::Compile(v8::String::New(
+      "function kTryCatch() {\n"
+      "  try {\n"
+      "    startProfiling();\n"
+      "  } catch (e) { };\n"
+      "}\n"
+      "function kTryFinally() {\n"

[yurys, 2013/09/02 14:40:05]

Why this "k" prefix?

[loislo, 2013/09/02 16:03:45]

Done.

+      "  try {\n"
+      "    kTryCatch();\n"
+      "  } finally { };\n"
+      "}\n"
+      "kTryFinally();\n"
+      "stopProfiling();"));
+  script->Run();
+  CHECK_EQ(1, profiler->GetProfileCount());
+  const v8::CpuProfile* profile = profiler->GetCpuProfile(0);
+  const v8::CpuProfileNode* current = profile->GetTopDownRoot();
+  reinterpret_cast<ProfileNode*>(
+      const_cast<v8::CpuProfileNode*>(current))->Print(0);
+  // The tree should look like this:
+  //  (root)
+  //   (anonymous function)
+  //     kTryFinally
+  //       kTryCatch
+  // There can also be:
+  //         startProfiling

[yurys, 2013/09/02 14:40:05]

There should always be that tick as we generate it from startProfiling or am I
missing something?

[loislo, 2013/09/02 16:03:45]

Done.

+  // if the sampler managed to get a tick.
+  current = PickChild(current, i::ProfileGenerator::kAnonymousFunctionName);
+  CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
+
+  current = PickChild(current, "kTryFinally");
+  CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
+  CHECK_EQ(v8::String::New("TryFinallyStatement"),
+           current->GetBailoutReason());
+
+  current = PickChild(current, "kTryCatch");
+  CHECK_NE(NULL, const_cast<v8::CpuProfileNode*>(current));
+  CHECK_EQ(v8::String::New("TryCatchStatement"),
+        current->GetBailoutReason());
+}